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WikiCards · Card list · Science cards · Amount of substance
Uncommon card · Science
Amount of substance, an Uncommon card
In chemistry, the amount of substance in a given sample of matter is defined as a ratio between the number of elementary entities and the Avogadro constant.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 70
- DEF
- 56
- Power
- 126
- Wikipedia reads a year
- 39,000
Power 126 (ATK + DEF): stronger than 60 % of WikiCards cards.
Amount of substance quiz: 3 questions
Three questions on the Amount of substance card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is one of the seven base quantities of the ______ System of Units, SI.
Answer
International. It is one of the seven base quantities of the International System of Units, SI. From the Amount of substance article on Wikipedia.
In which decade?
Since ____, the mole has been defined such that the value of the Avogadro constant NA is exactly 6.02214076×1023 mol−1, defining a macroscopic unit convenient for use in laboratory-scale chemistry.
Answer
2010s. Since 2019, the mole has been defined such that the value of the Avogadro constant NA is exactly 6.02214076×1023 mol−1, defining a macroscopic unit convenient for use in laboratory-scale chemistry. From the Amount of substance article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Omega Centauri. Omega Centauri 55,000 · Amount of substance 39,000 · Geodetic datum 31,000 · Baggage 24,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is one of the seven base quantities of the International System of Units, SI.
- The unit of amount of substance in the SI is the mole, a base unit.
- Since 2019, the mole has been defined such that the value of the Avogadro constant NA is exactly 6.02214076×1023 mol−1, defining a macroscopic unit convenient for use in laboratory-scale chemistry.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Amount of substance article was read about 39,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 70 and blocks with 56: each hit it takes is cut by 22 %.
How to get Amount of substance
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
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Credits
Text : Wikipedia, Amount of substance (revision), CC BY-SA 4.0. Photo : VectorVoyager, CC BY-SA 4.0, Wikimedia Commons.
